Car-truck



(No Model.)

E- Uu BENBDIOT@ GAR TRUCK, N0.-309,1185l- Y Pate-ntedDeo.161884. ,i i Jl IIII...

jing/2%??? Unirse STaTns ldnTnrvT @rtree ELAS U. BEL'EDICT, OF AURORA, ILLINOIS.

CAR-TRUCK.

SEECIFICATION forming part of Letters Patentll'oOSlSS, dated December' 16, 1884.

Application filed September 18, 1834.

T0 LZZ 1,071,071?, t 1li/ty con/cerrar Be it known. that I, ELL-is U. Bnnnnrcr, a citizen of the United States, residing at Aurora, in the county of Kane and State olllliuois, have invented certain new and useful Improvements in Car-Trucks; and I hereby declare the following to be a full, clear, and exact description of the same.

My improvement relates to the class of can trucks in which provision is made to avoid strain upon the wheels and parts connected with them, particularly when the truck is rounding a curve, and when there are `irregularities in the track.

It is my object to accomplish the purpose above mentioned with a device of simple construction, whereby, also, the change in direction of a car while rounding a curve, shall be gradual throughout its length.

To the above ends my invention consists in providing i'or each pair of wheels a limited in dependent lateral oscillatory movement; and my invention further consists in certain details of construction and combinations of parts, all as hereinafter particularly set forth.

Referring to the drawings, Figure l repre sents a side elevation or' a l'our-whecled truck in position upon the bottoni ol" a car,and resting upon the car-track, and provided with my improvement, Fig. 2, a plan view, partly in section, to show a detail of construction ol" one wheel provided with my improvci'nent; Fig. 3, a sectional View taken on the line 3 3 oi" Fig. 2, viewed in the direction ofthe arrows; and Fig. et, a perspective view ol" a guide, showing a detail of construction.

A represents a portion of one side ot' a car supported upon a truck, in the usual manner, by means of the center casting, B, the usual springs, D, being also provided. The side wheels-are connected together and confined by a frame of common construction, comprising iron trusses upon each side of the tru ck, iorined ot' the bar t, braces s s, guides fr, and tie (l. The guides r are made concave longitudinally upon a portion of their rear surfaces, and are provided with. vertical openings j), formed through their thicker parts to admit the rods or bolts o, which pass also through the bar t, braces s, and tie q on each side of a journalbox, E, forming the bearing for the latter.

(No model.)

The upper side of each journal-box E is provided transversely with grooves n, in each of which lies a roller, m, having its ends eonned within bearings comprising elongated recesses Z, straight on their under sides, but curved throughout the remainder of the extent ofeach, and formed on the inner faces or" the heads of the guides r. The purpose oi' the curved form of the upper sides of the recesses Z andof the grooves n is to render the truck selfadjustiiig by thc tendency of the rollers to assumea central position within their bearings, which pre sent to them inclined planes-one above the rollers and the other below. rThe grooves a form stops for the rollers and afford them a limited lateral play.

It will be understood from the foregoing description that as the forward truck begins to follow the line ol curve in the track the wheels will, be moved laterally iu one direction a limited distance, coniined by the length of play permitted to the ends of the rollers m in the recesses Z, while the rear truck will be moved in the opposite direction in the same ina-nner, thuis producing the change in the direction oi" the car evenly and gradually, avoiding strain upon the parts ofthe truck upon the car and upon the track, and lcssening to a very great extent the wear upon the ends of the journal-brasscs, owing to the fact that in my improvement the axles have no lateral play within their bearings, but oscillatc laterally with the bearings.

What l claim as new, and desire to secure by Letters latcnt, is-

1. ln a car-truck, the combination, with the frame which supports the body of the car, of rollers m upon the axle-boxes, lying transversely across the same and supporting upon their ends the said frame, and conned between stops which atford them a limited lateral play, substantially as described.

2. In a ear-truck, the combination, withthe journalbearings E, provided with suitable stops and guides, r, of rollers m, journaled within the said guides 1', whereby each transverse pair ot'wheels of the truck shall have a limited independent lateral oscillatory movement, substantially as described, and for the purpose set forth.

3. The combination, with the journal-boxes IOO E of a ear-truck, said journal-boxes having Within the said recesses, the Whole being eon transverse grooves n formed upon their upper strueted and arranged to operate substantially surfaces, of guides o, supporting the frame of as and for the purpose set forth.

Jche truck, and having elongated recesses Z" ELIAS U. BENEDICT. formed transversely upon the inner faces of In presence of-\ the heads of the said guides, and rollers fm D. J. PEFFERS,

resting Within the grooves 'n and journaled J. W. SKELsEY. 

